leafs curling up and twisting

hey all,

im using bio bizz all mix soil, and bio-bizz nutes, no PH metre but i age my water and nute before feeding and works fine. any ideas. just fed them there 2nd half strength feed, so problem might clear up if it a lack of nutes problem.

What's your heat like? That can be from overheating.

I agree with Kludge...I had the EXACT same thing....healthy plants that did that......got heat from ~86 down to ~81 and the leaves straightened out.

mine did the same thing, just a little to warm

nice one guys, it makes sense. cheers for the input +rep